Winding, stranding, coiling, lapping or the like machine



Oct. 11, 1932. .1. H. LARMUTH WINDING, STRANDING, COILINQ,.LAPPING, on THE LIKE MAHINE 2 Sheets-Sheet 1 Filed Feb. 25. 1931 Oct. 11, 1932- J. H.'LARMUTH L J WINDING, STRANDING, COILING, LAPPING, OR THE LIKE MACHiNE Filed Feb. 25, 1931 2 Sheets-Sheet 2 Patented Oct 11, 1932 mit;

UNITED, STATES.

' JOHN HAMILTON LARMUTH, or UPPER COLWYN BAY, WALES I WINDING, srnanmive, comma, LArrrNe oa'rn'a LIKE Macrame Application filedlebruary 25, 1931, Serialll'o.

This invention relates to winding, strand ing, coiling, lapping or the like machines wherein bobbins are mounted on spindles supported in slots or holes provided inthe' 53 Cradles or frames'of the machines and the mainobject thereof is to facilitate the locking of the said spindles in the cradles'or frames and the unlocking of the said spindles from the said cradles or frames. 1 j

I attain this and another obj ect'which will hereinafter appear, by means ofthe mechanism shown in the accompanying drawings and as hereinafter claimed. In the draw- .ings- V Figure 1 is a fragmentary side elevation part of a'bobbin cradle of a winding, stranding,'coiling, lapping or thelike machine and illustrates one construction.

Figure 2 is a fragmentary plan view thereof. V v

Figure 3 is a view in vertical section taken on line 8 3 of Figure 2 I Figure 4 is a fragmentary side elevation of part of a bobbin cradle of a winding, stranding, coiling, lapping or the like machine and illustrates another construction.

Figure 5 is a fragmentary plan view thereof, partly in section.

Figure 6 is a view in vertical section taken on line 66 of Figure 5.

Figure 7 is a fragmentary side view in vertical section and serves to illustrate a detail. V

Referring to the drawings, in the construction shown in Figures 1 to 3, as applied by way of example to a machine provided with bobbin cradles each comprising two side parts 1 connected together by two end parts, of which one end part 2 is shown, and the bobbin rotating in the space surrounded by the side and end parts on a spindlehaving squared or round ends which engage in and rest onthe bottom of cross slots 3 provided in the side parts 1 and having open tops situated in the upper surfaces of the side parts 1,1 provide at one side of the top of each slot an undercut catch piece 4' which maybe integral with the said side part 1 and projects upwardly from the upper surface thereof. At the other side ofeach slot 3 I provide a 518,153, and in Great Britain Mantis. 1e30,

locking slide 5 which slides on the upper sur- 7 face of the corresponding side part 1 and is guided by two studs 6 which are provided with nuts and project through slots 7 in the locking slide and screw into the side part 1.

That end of each locking slide 5 which is nearer the slot'3 is adapted to engage the recess in the corresponding undercut catch piece 4 when the slide is projected. The slides 5 are shown in the projected positions. The other end of each locking slide is provided with a lateral extension 8 which has a downwardly projecting pin .9. v

A cross slide 10 is provided beneath the last named ends of the locking slides 5 and extends ,acrossthe cradle-from one side part 1 to the other and is accommodated in cross depressions 11 in the side parts 1. The cross slide 10 has two slots 12 arranged at an angle to the direction of its movement and each slot 12 is engaged by one of the pins 9 on looking slides 5. The cross slide 10 has an aperture 13 at one or both ends to enable it to be gripped more readily by the hand. The apertured ends may be bent upwards or not, as

desired.

On one or both of the locking slides .5 there is a laterally projecting spring 14 provided with a thickened end 15 forming a shoulder adapted to engage one side of the corresponding aperture 13 in the cross slide 10.

In operation, to open the slots 3 for the reception of a spindle, the thickened end 15 of the spring 14 ispushed upwards out of the aperture 13 and the cross slide 10 is pulled and thus one side surface of each of the slots 12 therein is caused to act on the correspond ing pin 9 m move it laterally of the slide 10 and therefore move the locking slide 5 along the corresponding side part 1 and cause its.

locking end to be withdrawn from above the open tops of the spindle slots 3 in side parts 1. The slots are thus free to have the square ends of the spindle dropped into them. When the said ends are in position in thesaid slots, one fiat of each end is flush with the upper surface of the corresponding side part 1.

v The cross slide 10 is then pushed in the opposite direction and the otherside surface 12 of each slot therein then acts on the corre- I pieces 4 on the other hand form avery strong and reliable resistance against the breaking of the locking slides 5 away from the top of the spindle slots 3, which isparticularly important when the cradle is'intended to be rotated.

F The thicke ed end 15 of the said spring'14 automatically engages the aperture'13'in the cross slide lQand prevents-movement thereof 7 V in the unlocking direction until again disen-. r I

gaged'by hand. I I a V By asingle movement ,of the cross slide 10 in the first named or unlocking direction, both locking slides 5'are withdrawn'from above the upper ends ofspindle, slots '3 and thus free the spindle torremovaLf The end 16 of each of the slots in ,thecross slide 10, as shown, may be formed parallel with the direction ofmovementpthe pins 9 entering the ends 16 when the locking slides 5 have'been fully projected, whereby any tendency ofthe locking slides 5 to force the cross slide 10 in the unlocking direction is defeated;

In the construction shown in Figures4 to 7 as applied by way of example to a cradle which consists of two side parts 17 connected together by two end parts of which jone end part 38 is shown and having holes 187 through which the bobbin spindle 19 is threaded for the purpose of mountingit in the cradle, l provide on the outer side surface of each side part 17 a lockingslide 20 mounted and guided at each side of the corresponding spindle hole 18 by headed screws 21 extending through longitudinal slots 22 in the slide and screwed into the said side parts 17 Each locking slide 20 has a key-hole 23 adapted to moveacross the outerorifice oi the spindle hole 18. v

Each slide 20 also has an. upwardly pro jecting pin 24 which is in the form of a stud provided with a nut and which engages one of two slots 25 provided in a cross slide 26' mounted and guided on the upper surfaces of the side parts 17 The slots 25 are at anangle to the direction of movement of the cross slide 26 and may each have an end 27 which is parallel with the said direction.

. The cross slide 26 is provided at one end "with an aperture 28 for its more convenient manipulation and oneof thelocking slides 20 is provided with a spring catch 29 adapted to engage one side of the aperture 28. I I

i The spindle19 is provided at each end with two cross slots 30 the bottoms 3101: which are at a slight angle to each other. 1 Oneend of the spindle 19 is 'also'provided with an integral collar'32. The end 33 of the collar 32 is inclined and there is-a corresponding incline 34 on the side of the slide 20. The

sides 35 of the slots 30 at the opposite end of i the spindles-are also inclined and a correspondingly inclined face 36 is also provided on the other slide 20. The sides of narrower parts of the key-holesl'ots 23 mayftaper towards the closed end thereof.

r; The operationis similar to that hereinbefore described in sofar as the cross slide 26 moves the locking slides2O through the me diumofthe pins 24 andslots 25 and the catch 29 looks the cross slide 26 inthe locking position. i

I To. insert the I the cradle, the

cross. slide 26*isf moved tofbring the locking slide's20 simultaneously into positions where the enlarged ends oftheirfkey-hole slots"23 register .With'the spindle'holes 18 in-the side parts 17. That end of thespindle 19v which is'not provided-with a collar is then threaded I through the key-hole slots 23 and holes 18' and incidentally through the bobbin until the collar 32, abuts against the outer side Of orient the locking slides 20. "Thespindle 19 is brought by means ofa tommy pin=37 fixed to the spindle and ha vinga head into an angular position where the cross slots '30 key hole slots 23 to be engaged by the spindle therein willpermit the narrower parts of the t 19 andthe converging bottoms'31 ofthe cross-..

clinedb ottoms 31 of theicross slots in'the spindle'and the taper of the-jkey-hole slots place and thereby ensure 'a firm and rigid connection of the parts. Also the-inclined surfaces 34 and 36 cooperate with the inclined surfaces 33 and 35 respectively to bind the spindle against axial movement or slack.

ness. The spring catch 29 then automatically secures the cross slide 26 in the locking position Thus the spindle' 19 is maintained against axial movement; To release the spindle 19, the spring catch 29 is first released, and then the crossslide 26 is moved in opposite directionto displace the locking slides '20 I intopositions where the enlarged ends of the holes 18.

cause a wedging' orfbinding' actiont'o take The locking slides 20 ingestion td-106k- .ing' the spindle 19 axially and against rotation also cause the weight ofthe bobbin, to'

be distributed between both side parts at all times,1and particularly; where the cradle is intended to rotate? rljclaimf-v.

[1. In a winding, stranding, coiling, lapping or the like machine,*abobbin 'carr'ymg mem;

key-hole -slots 23 register with the spindle .120 I ber,abobbinspindlesupportedtherein,locking slides mounted on the bobbin carrying member to slide at right angles to the axis of the bobbin spindle, an operating slide mounted on the bobbin carrying member to slide parallel with the said axis, slanting surfaces on the operating slide, and projections on the locking slides and acted on by the slanting sur-- faces which thereby slide the locking slides into bobbin spindle locking and unlocking positions on actuation of operating slide in the requisite direction.

2. A winding, stranding, coiling, lapping or the like machine according to claim 1 wherein the slanting surfaces join surfaces which are parallel with the axis of the bobbin spindle and act on the said projection and prevent movement of the locking slides when the operating slide is in looking position.

3. In a winding, stranding, coiling, lapping or the like machine, a bobbin carrying member having bobbin spindle holes, a bobbin spindle mounted in the said holes, cross slots in the bobbin spindle, locking members provided on the bobbin carrying member and engaging the cross slots in one position, and an actuating member provided on the bobbin carrying member for moving the locking members into and out of the engaging position.

4:. A winding, stranding, coiling, lapping or the like machine according to claim 3, wherein the cross slots in the bobbin spindle are provided with inclined bottoms which are acted on by the two locking members which thereby bind the spindle laterally in position when the said members are in the locking position. 7

5. A winding, stranding, coiling, lapping or the like machine according to claim 3, wherein a fixed collar is provided on the bobbin spindle and a flat, inclined surface is provided on the said collar and is acted on by one of the two locking members which bind the spindle longitudinally in position when the said members are in the locking positions.

In testimony whereof, I have signed my name to this specification at Manchester in the county of Lancaster, England, this 22nd day of January, 1931.

JOHN HAMILTON LARMUTH. 

